What Makes up a Subnet Mask (SNM)?
In Binary: 1’s represent what portion of the IP address is the Network ID 0’s represent what portion of the IP address is the Host ID For Example: 207.23.106.99      (Class C Address) Net . Net . Net . Host 11111111 . 11111111 . 11111111 . 00000000 (SNM in Binary) 255.255.255.0 […]
Address Classes: Network IDs and Host IDs
Class A (1st Octet 1-127)   -     Network.Host.Host.Host Class B (1st Octet 128-191) -  Network.Network.Host.Host Class C (1st Octet 192-223) - Network.Network.Network.Host  If the 1st Octet is: 1 – 127  Class A  Net.Host.Host.Host 128-192 Class B  Net.Net.Host.Host 192-224 Class C  Net.Net.Net.Host 224-240 Class D […]
IP Addressing and Subnetting
Learn to Subnet™.com A Free Lecture-based Educational Course on IP Addressing and Subnetting Part of the www.LearnTCPIP™.com Education Series Covering TCP/IP, TCP, DNS, Ethernet, OSI Model, Subnetting, IP Addressing and the Internet Learn to Subbet